//package validator;
//
//import org.springframework.stereotype.Component;
//import org.springframework.validation.Errors;
//import org.springframework.validation.Validator;
//
//import command.FilterForm;
//
//@Component
//public class FilterFormValidator implements Validator {
//
//	@Override
//	public boolean supports(Class<?> clazz) {
//		return FilterForm.class.equals(clazz);
//	}
//	
//	@Override
//	public void validate(Object target, Errors errors) {
//		FilterForm form = (FilterForm) target;
//		if(form.getOrderBy() == null ) {
//			errors.rejectValue("orderBy", "empty");
//		} else if (form.getOrderBy().isEmpty()) {
//			form.setOrderBy(null);
//		}
//	}
//}